<template>
    <div class="login_container">
        <div class="login_box">
            <!-- 头像区 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="头像">
            </div>
            <!-- 登录表单 -->
            <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
                <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
                </el-form-item>
                <!-- 按钮 -->
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
  data() {
        return {
            loginForm: {
                username: 'admin',
                password: '123456',
            },
            loginFormRules: {
                username: [
                    { required: true, message: "请输入登录名称", trigger: "blur"},
                    { min: 3, max: 10, message: "长度在3-10之间"}
                ],
                password: [
                    { required: true, message: "请输入密码", trigger: "blur"},
                    { min: 6, max: 15, message: "长度在6-15之间"}
                ]
            }
        };
  },
  methods: {
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields();
    },
    login() {
        this.$refs.loginFormRef.validate(async valid => {
            if(!valid) return;
            const {data: res} = await this.$http.post("login", this.loginForm);
            if(res.meta.status !== 200) return this.$message.error("登录失败");
            this.$message.success("登录成功");

            window.sessionStorage.setItem('token', res.data.token);
            this.$router.push("/home")
        });
    }
  }
};
</script>

<style lang="less" scoped>
.login_container{
    background-color: rgb(94, 131, 199);
    height: 100%;
}

.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 10px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    .avatar_box{
        height: 130px;
        width: 130px;
        border: 1px solid #eee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left: 50%;
        transform: translate(-50%, -50%);
        background-color: #fff;
        img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
    }
}

.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 25px;
    box-sizing: border-box;
}

.btns {
    display: flex;
    justify-content: flex-end;
}
</style>
